CASCADE WWTP - Cascade, Wisconsin Wastewater Treatment Plant

CASCADE WWTP is a municipal wastewater treatment facility located in Cascade, Wisconsin, serving a population of approximately 1,268 residents. The plant operates under the regulatory framework of the United States Clean Water Act, which requires secondary treatment for municipal wastewater discharges. As a small-scale facility, it plays a vital role in protecting local water quality in Sheboygan County. The plant provides secondary treatment, a standard biological process that removes organic matter and suspended solids. With a designed capacity of 492.10 million gallons per year and an annual discharge volume of 264.98 million gallons, the facility operates well within its capacity. The plant's treatment process meets the requirements set by the Wisconsin Department of Natural Resources under the National Pollutant Discharge Elimination System (NPDES) permit program. The treated effluent from CASCADE WWTP is discharged into a local water body that ultimately drains into the Lake Michigan basin. Lake Michigan is a major freshwater resource supporting diverse aquatic life and providing drinking water for millions. The plant's secondary treatment helps reduce nutrient loading and protects the ecological health of the downstream watershed.

CASCADE WWTP discharges treated wastewater into a tributary of the Sheboygan River, which flows into Lake Michigan. Lake Michigan is one of the largest freshwater lakes in the world and supports a rich ecosystem, including fish species such as lake trout and whitefish. The plant's secondary treatment reduces organic pollutants and suspended solids, helping to maintain water quality in the Sheboygan River and ultimately protecting the lake's ecological balance.